refactor WaitWindow_Impl to use RenderContext
refactor WaitWindow_Impl to use RenderContext

Change-Id: Idff71d8303f0aaf3c1c1e44f6f19248c0aaecd98

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core